linux-kernel - RE: [PATCH 2/2] Drivers: scsi: storvsc: Force discovery of LUNs that may have been removed.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 26 Aug 2014 22:54:51 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Christoph Hellwig <hch@...radead.org>
CC:	"hare@...e.de" <hare@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"ohering@...e.com" <ohering@...e.com>,
	"jbottomley@...allels.com" <jbottomley@...allels.com>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	"Martin K. Petersen" <martin.petersen@...cle.com>
Subject: RE: [PATCH 2/2] Drivers: scsi: storvsc: Force discovery of LUNs that
 may have been removed.



> -----Original Message-----
> From: Christoph Hellwig [mailto:hch@...radead.org]
> Sent: Tuesday, August 19, 2014 10:55 AM
> To: KY Srinivasan
> Cc: hare@...e.de; linux-kernel@...r.kernel.org;
> devel@...uxdriverproject.org; ohering@...e.com;
> jbottomley@...allels.com; linux-scsi@...r.kernel.org; Martin K. Petersen
> Subject: Re: [PATCH 2/2] Drivers: scsi: storvsc: Force discovery of LUNs that
> may have been removed.
> 
> On Sat, Aug 16, 2014 at 08:09:48PM -0700, K. Y. Srinivasan wrote:
> > The host asks the guest to scan when a LUN is removed or added.
> > The only way a guest can identify the removed LUN is when an I/O is
> > attempted on a removed LUN - the SRB status code indicates that the
> > LUN is invalid. We currently handle this SRB status and remove the device.
> >
> > Rather than waiting for an I/O to remove the device, force the
> > discovery of LUNs that may have been removed prior to discovering LUNs
> > that may have been added.
> 
> This looks pretty reasonable to me, but I wonder if we should move this up
> to common code so that it happens for any host rescan triggered by sysfs or
> other drivers as well.
Ping. Any decision on if/when this patch may be checked in.

Regards,

K. Y

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/